depcomp

   1 #! /bin/sh
   2
   3 # depcomp - compile a program generating dependencies as side-effects
   4 # Copyright 1999, 2000 Free Software Foundation, Inc.
   5
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2, or (at your option)
   9 # any later version.
  10
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  19 # 02111-1307, USA.
  20
  21 # As a special exception to the GNU General Public License, if you
  22 # distribute this file as part of a program that contains a
  23 # configuration script generated by Autoconf, you may include it under
  24 # the same distribution terms that you use for the rest of that program.
  25
  26 # Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
  27
  28 if test -z "$depmode" || test -z "$source" || test -z "$object"; then
  29   echo "depcomp: Variables source, object and depmode must be set" 1>&2
  30   exit 1
  31 fi
  32 # `libtool' can also be set to `yes' or `no'.
  33
  34 depfile=${depfile-`echo "$object" | sed 's,\([^/]*\)$,.deps/\1,;s/\.\([^.]*\)$/.P\1/'`}
  35 tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
  36
  37 rm -f "$tmpdepfile"
  38
  39 # Some modes work just like other modes, but use different flags.  We
  40 # parameterize here, but still list the modes in the big case below,
  41 # to make depend.m4 easier to write.  Note that we *cannot* use a case
  42 # here, because this file can only contain one case statement.
  43 if test "$depmode" = hp; then
  44   # HP compiler uses -M and no extra arg.
  45   gccflag=-M
  46   depmode=gcc
  47 fi
  48
  49 if test "$depmode" = dashXmstdout; then
  50    # This is just like dashmstdout with a different argument.
  51    dashmflag=-xM
  52    depmode=dashmstdout
  53 fi
  54
  55 case "$depmode" in
  56 gcc3)
  57 ## gcc 3 implements dependency tracking that does exactly what
  58 ## we want.  Yay!  Note: for some reason libtool 1.4 doesn't like
  59 ## it if -MD -MP comes after the -MF stuff.  Hmm.
  60   "$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
  61   stat=$?
  62   if test $stat -eq 0; then :
  63   else
  64     rm -f "$tmpdepfile"
  65     exit $stat
  66   fi
  67   mv "$tmpdepfile" "$depfile"
  68   ;;
  69
  70 gcc)
  71 ## There are various ways to get dependency output from gcc.  Here's
  72 ## why we pick this rather obscure method:
  73 ## - Don't want to use -MD because we'd like the dependencies to end
  74 ##   up in a subdir.  Having to rename by hand is ugly.
  75 ##   (We might end up doing this anyway to support other compilers.)
  76 ## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
  77 ##   -MM, not -M (despite what the docs say).
  78 ## - Using -M directly means running the compiler twice (even worse
  79 ##   than renaming).
  80   if test -z "$gccflag"; then
  81     gccflag=-MD,
  82   fi
  83   "$@" -Wp,"$gccflag$tmpdepfile"
  84   stat=$?
  85   if test $stat -eq 0; then :
  86   else
  87     rm -f "$tmpdepfile"
  88     exit $stat
  89   fi
  90   rm -f "$depfile"
  91   echo "$object : \\" > "$depfile"
  92   alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
  93 ## The second -e expression handles DOS-style file names with drive letters.
  94   sed -e 's/^[^:]*: / /' \
  95       -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
  96 ## This next piece of magic avoids the `deleted header file' problem.
  97 ## The problem is that when a header file which appears in a .P file
  98 ## is deleted, the dependency causes make to die (because there is
  99 ## typically no way to rebuild the header).  We avoid this by adding
 100 ## dummy dependencies for each header file.  Too bad gcc doesn't do
 101 ## this for us directly.
 102   tr ' ' '
 103 ' < "$tmpdepfile" |
 104 ## Some versions of gcc put a space before the `:'.  On the theory
 105 ## that the space means something, we add a space to the output as
 106 ## well.
 107 ## Some versions of the HPUX 10.20 sed can't process this invocation
 108 ## correctly.  Breaking it into two sed invocations is a workaround.
 109     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 110   rm -f "$tmpdepfile"
 111   ;;
 112
 113 hp)
 114   # This case exists only to let depend.m4 do its work.  It works by
 115   # looking at the text of this script.  This case will never be run,
 116   # since it is checked for above.
 117   exit 1
 118   ;;
 119
 120 sgi)
 121   if test "$libtool" = yes; then
 122     "$@" "-Wp,-MDupdate,$tmpdepfile"
 123   else
 124     "$@" -MDupdate "$tmpdepfile"
 125   fi
 126   stat=$?
 127   if test $stat -eq 0; then :
 128   else
 129     rm -f "$tmpdepfile"
 130     exit $stat
 131   fi
 132   rm -f "$depfile"
 133
 134   if test -f "$tmpdepfile"; then  # yes, the sourcefile depend on other files
 135     echo "$object : \\" > "$depfile"
 136
 137     # Clip off the initial element (the dependent).  Don't try to be
 138     # clever and replace this with sed code, as IRIX sed won't handle
 139     # lines with more than a fixed number of characters (4096 in
 140     # IRIX 6.2 sed, 8192 in IRIX 6.5).  We also remove comment lines;
 141     # the IRIX cc adds comments like `#:fec' to the end of the
 142     # dependency line.
 143     tr ' ' '
 144 ' < "$tmpdepfile" \
 145     | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
 146     tr '
 147 ' ' ' >> $depfile
 148     echo >> $depfile
 149
 150     # The second pass generates a dummy entry for each header file.
 151     tr ' ' '
 152 ' < "$tmpdepfile" \
 153    | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
 154    >> $depfile
 155   else
 156     # The sourcefile does not contain any dependencies, so just
 157     # store a dummy comment line, to avoid errors with the Makefile
 158     # "include basename.Plo" scheme.
 159     echo "#dummy" > "$depfile"
 160   fi
 161   rm -f "$tmpdepfile"
 162   ;;
 163
 164 aix)
 165   # The C for AIX Compiler uses -M and outputs the dependencies
 166   # in a .u file.  This file always lives in the current directory.
 167   # Also, the AIX compiler puts `$object:' at the start of each line;
 168   # $object doesn't have directory information.
 169   stripped=`echo "$object" | sed -e 's,^.*/,,' -e 's/\(.*\)\..*$/\1/'`
 170   tmpdepfile="$stripped.u"
 171   outname="$stripped.o"
 172   if test "$libtool" = yes; then
 173     "$@" -Wc,-M
 174   else
 175     "$@" -M
 176   fi
 177
 178   stat=$?
 179   if test $stat -eq 0; then :
 180   else
 181     rm -f "$tmpdepfile"
 182     exit $stat
 183   fi
 184
 185   if test -f "$tmpdepfile"; then
 186     # Each line is of the form `foo.o: dependent.h'.
 187     # Do two passes, one to just change these to
 188     # `$object: dependent.h' and one to simply `dependent.h:'.
 189     sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
 190     sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
 191   else
 192     # The sourcefile does not contain any dependencies, so just
 193     # store a dummy comment line, to avoid errors with the Makefile
 194     # "include basename.Plo" scheme.
 195     echo "#dummy" > "$depfile"
 196   fi
 197   rm -f "$tmpdepfile"
 198   ;;
 199
 200 tru64)
 201    # The Tru64 AIX compiler uses -MD to generate dependencies as a side
 202    # effect.  `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
 203    # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
 204    # dependencies in `foo.d' instead, so we check for that too.
 205    # Subdirectories are respected.
 206
 207    tmpdepfile1="$object.d"
 208    tmpdepfile2=`echo "$object" | sed -e 's/.o$/.d/'`
 209    if test "$libtool" = yes; then
 210       "$@" -Wc,-MD
 211    else
 212       "$@" -MD
 213    fi
 214
 215    stat=$?
 216    if test $stat -eq 0; then :
 217    else
 218       rm -f "$tmpdepfile1" "$tmpdepfile2"
 219       exit $stat
 220    fi
 221
 222    if test -f "$tmpdepfile1"; then
 223       tmpdepfile="$tmpdepfile1"
 224    else
 225       tmpdepfile="$tmpdepfile2"
 226    fi
 227    if test -f "$tmpdepfile"; then
 228       sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
 229       # That's a space and a tab in the [].
 230       sed -e 's,^.*\.[a-z]*:[   ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
 231    else
 232       echo "#dummy" > "$depfile"
 233    fi
 234    rm -f "$tmpdepfile"
 235    ;;
 236
 237 #nosideeffect)
 238   # This comment above is used by automake to tell side-effect
 239   # dependency tracking mechanisms from slower ones.
 240
 241 dashmstdout)
 242   # Important note: in order to support this mode, a compiler *must*
 243   # always write the proprocessed file to stdout, regardless of -o,
 244   # because we must use -o when running libtool.
 245   test -z "$dashmflag" && dashmflag=-M
 246   ( IFS=" "
 247     case " $* " in
 248     *" --mode=compile "*) # this is libtool, let us make it quiet
 249       for arg
 250       do # cycle over the arguments
 251         case "$arg" in
 252         "--mode=compile")
 253           # insert --quiet before "--mode=compile"
 254           set fnord "$@" --quiet
 255           shift # fnord
 256           ;;
 257         esac
 258         set fnord "$@" "$arg"
 259         shift # fnord
 260         shift # "$arg"
 261       done
 262       ;;
 263     esac
 264     "$@" $dashmflag | sed 's:^[^:]*\:[  ]*:'"$object"'\: :' > "$tmpdepfile"
 265   ) &
 266   proc=$!
 267   "$@"
 268   stat=$?
 269   wait "$proc"
 270   if test "$stat" != 0; then exit $stat; fi
 271   rm -f "$depfile"
 272   cat < "$tmpdepfile" > "$depfile"
 273   tr ' ' '
 274 ' < "$tmpdepfile" | \
 275 ## Some versions of the HPUX 10.20 sed can't process this invocation
 276 ## correctly.  Breaking it into two sed invocations is a workaround.
 277     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 278   rm -f "$tmpdepfile"
 279   ;;
 280
 281 dashXmstdout)
 282   # This case only exists to satisfy depend.m4.  It is never actually
 283   # run, as this mode is specially recognized in the preamble.
 284   exit 1
 285   ;;
 286
 287 makedepend)
 288   # X makedepend
 289   (
 290     shift
 291     cleared=no
 292     for arg in "$@"; do
 293       case $cleared in no)
 294         set ""; shift
 295         cleared=yes
 296       esac
 297       case "$arg" in
 298         -D*|-I*)
 299           set fnord "$@" "$arg"; shift;;
 300         -*)
 301           ;;
 302         *)
 303           set fnord "$@" "$arg"; shift;;
 304       esac
 305     done
 306     obj_suffix="`echo $object | sed 's/^.*\././'`"
 307     touch "$tmpdepfile"
 308     ${MAKEDEPEND-makedepend} 2>/dev/null -o"$obj_suffix" -f"$tmpdepfile" "$@"
 309   ) &
 310   proc=$!
 311   "$@"
 312   stat=$?
 313   wait "$proc"
 314   if test "$stat" != 0; then exit $stat; fi
 315   rm -f "$depfile"
 316   cat < "$tmpdepfile" > "$depfile"
 317   tail +3 "$tmpdepfile" | tr ' ' '
 318 ' | \
 319 ## Some versions of the HPUX 10.20 sed can't process this invocation
 320 ## correctly.  Breaking it into two sed invocations is a workaround.
 321     sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
 322   rm -f "$tmpdepfile" "$tmpdepfile".bak
 323   ;;
 324
 325 cpp)
 326   # Important note: in order to support this mode, a compiler *must*
 327   # always write the proprocessed file to stdout, regardless of -o,
 328   # because we must use -o when running libtool.
 329   ( IFS=" "
 330     case " $* " in
 331     *" --mode=compile "*)
 332       for arg
 333       do # cycle over the arguments
 334         case $arg in
 335         "--mode=compile")
 336           # insert --quiet before "--mode=compile"
 337           set fnord "$@" --quiet
 338           shift # fnord
 339           ;;
 340         esac
 341         set fnord "$@" "$arg"
 342         shift # fnord
 343         shift # "$arg"
 344       done
 345       ;;
 346     esac
 347     "$@" -E |
 348     sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
 349     sed '$ s: \\$::' > "$tmpdepfile"
 350   ) &
 351   proc=$!
 352   "$@"
 353   stat=$?
 354   wait "$proc"
 355   if test "$stat" != 0; then exit $stat; fi
 356   rm -f "$depfile"
 357   echo "$object : \\" > "$depfile"
 358   cat < "$tmpdepfile" >> "$depfile"
 359   sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
 360   rm -f "$tmpdepfile"
 361   ;;
 362
 363 msvisualcpp)
 364   # Important note: in order to support this mode, a compiler *must*
 365   # always write the proprocessed file to stdout, regardless of -o,
 366   # because we must use -o when running libtool.
 367   ( IFS=" "
 368     case " $* " in
 369     *" --mode=compile "*)
 370       for arg
 371       do # cycle over the arguments
 372         case $arg in
 373         "--mode=compile")
 374           # insert --quiet before "--mode=compile"
 375           set fnord "$@" --quiet
 376           shift # fnord
 377           ;;
 378         esac
 379         set fnord "$@" "$arg"
 380         shift # fnord
 381         shift # "$arg"
 382       done
 383       ;;
 384     esac
 385     "$@" -E |
 386     sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
 387   ) &
 388   proc=$!
 389   "$@"
 390   stat=$?
 391   wait "$proc"
 392   if test "$stat" != 0; then exit $stat; fi
 393   rm -f "$depfile"
 394   echo "$object : \\" > "$depfile"
 395   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::    \1 \\:p' >> "$depfile"
 396   echo "        " >> "$depfile"
 397   . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
 398   rm -f "$tmpdepfile"
 399   ;;
 400
 401 none)
 402   exec "$@"
 403   ;;
 404
 405 *)
 406   echo "Unknown depmode $depmode" 1>&2
 407   exit 1
 408   ;;
 409 esac
 410
 411 exit 0